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Feature-based attention modulates feedforward visual processing

Nature Neuroscience volume 12, pages 2425 (2009) | Download Citation

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Abstract

It is widely believed that attention selects locations at an earlier stage than it selects nonspatial features, but this has been tested only under conditions of minimal competition. We found that, when competition was increased, color-based attention was able to influence the feedforward flow of information in humans within 100 ms of stimulus onset, even for stimuli presented at unattended locations. Thus, color-based attention can operate as early as, and independently from, spatial attention.

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Acknowledgements

This work was made possible by a grant from US National Institute of Mental Health to S.J.L.

Author information

Affiliations

  1. Center for Mind and Brain, University of California Davis, 267 Cousteau Place, Davis, California 95618, USA.

    • Weiwei Zhang
    •  & Steven J Luck
  2. Department of Psychology, University of California Davis, One Shields Avenue, Davis, California 95616, USA.

    • Steven J Luck

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Contributions

W.Z. and S.J.L. conceptualized and designed the experiments. W.Z. collected the data and performed the data analyses. W.Z. and S.J.L. wrote the paper.

Corresponding author

Correspondence to Weiwei Zhang.

Supplementary information

PDF files

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    Supplementary Text and Figures

    Supplementary Figures 1 and 2, Supplementary Methods, Supplementary Results and Supplementary Discussion

Videos

  1. 1.

    Supplementary Video 1

    Example of a trial from Experiment 1a.

  2. 2.

    Supplementary Video 2

    Example of a trial from Experiment 1b.

  3. 3.

    Supplementary Video 3

    Example of a trial from Experiment 2.

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DOI

https://doi.org/10.1038/nn.2223

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